Substance
- Hydrofluoric
acid
Common name or Trade name
- 氫氟酸
- 用途: 磨光玻璃, 金屬除鏽，半導體工業[1].
Involving system
- depends on the route of exposure
- electrolyte imbalance
- Skin necrosis if contact injury.
Presentation
- hypocalcemia [1,2]
- hyperkalemia
[1]
- hypomagnesemia [1]
- arrhythmia,
VT, Vf [2].
-extreme high
T wave in ECG [2]
Antidote and
Treatment
- skin
decontamination [1]; activated
charcoal is not indicated.
-
Sincal; Calcium gluconate [2]
- milk in
ingested HF case [2].
- NG
decompression rather than irrigation [1].
- ACLS
Disposition
- lethal dose: 1.5gm, or 20mg/kg.
- ICU care when arrhythmia/life-threatening
condition or massive burn injury,
50% solution > TBSA 1%;
TBSA > 5%;
> 60% solution inhalation injury.
Swallowing/ingestion injury.
REFERENCES
[1]. 急診醫學會, AILS三版, p. 247—254.
[2]. Su YJ, Lu LH, Choi WM, Chang KS.
Survival after massive hydrofluoric acid ingestion with ECG changes. Am J
Emerg Med. 2001 Sep;19(5):458-60. doi: 10.1053/ajem.2001.24503. Erratum in: Am
J Emerg Med. 2009 Jan;27(1):126. PMID: 11555812.
Dec 28, 2020, edited by Yu-Jang Su.
